Genome assembly of the UK MTci2 strain of Teladorsagia circumcincta
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB80725 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Teladorsagia circumcincta Genome Sequencing
| PRJNA72569 | ENA
Project description:This data is part of a pre-publication release. For information on the proper use of pre-publication data shared by the Wellcome Trust Sanger Institute (including details of any publication moratoria), please see http://www.sanger.ac.uk/datasharing/ Teladorsagia circumcincta, the brown stomach worm, is the most important gastro-intestinal parasite of sheep in temperate regions and is present on 100% of sheep farms in the UK. Infection with T. circumcincta causes a spectrum of disease in the host, ranging from weight loss to death, and results in significant production losses. Parasitic disease is currently controlled by treatment with anthelmintics but resistance to these drugs is widespread and threatens the viability of the livestock industry. There are now well-documented cases of UK farms harbouring triple-resistant T. circumcincta, which can no longer be controlled by any of the three major anthelmintic classes, forcing farmers to abandon sheep rearing. High-throughput sequencing of life stages of T. circumcincta will be used for gene finding and transcriptome analysis.
2015-06-30 | E-ERAD-342 | biostudies-arrayexpress
Project description:Genome sequencing of the drug resistant nematode Teladorsagia circumcincta.
| PRJNA219637 | ENA
Project description:Teladorsagia circumcincta niche specific expression
| PRJNA360903 | ENA
Project description:Teladorsagia circumcincta strain:field strain | isolate:NZ_Teci_NP Genome sequencing
| PRJNA544567 | ENA
Project description:Gastrointestinal nematode (GIN) is a major economic and health concern is sheep farming. Sheep breeds such as Texel are relatively resistant to GIN than the Suffolk. With the objective to understand the underlying genetic mechanism of resistance and susceptibility at the transcriptomic level, two groups of animal from both the breed were artificially (orally) infected with 30,000 L3 larvae of prominent GIN Teladorsagia circumcincta. Subgroups of animals from each breed were slaughtered on day 0, 3, 7, 14 and 21 of post infection (p.i.). Transcriptomic profiling of abomasal lymph node was performed using RNA-seq. The perturbations in gene expression profiles in both the breeds were evident and Texel showed a more tightly regulated immune response than the Suffolk. The number of differentially expressed (DE) genes between the breeds was highest (437) on un-infected control (day 0) and lowest (173) on day 7 p.i.. Pathway analysis of DE genes identified 3 significant pathways, which involved only more highly expressed genes of Suffolk breed on day 0 and only more highly expressed genes of Texel (with one exception) on day 7 p.i.. The Th1, Th2 and Treg response was evident in response to GIN in Texel and was synchronized, while in Suffolk Th1 response was reduced after infection and pronounced Th2 and Treg was not evident. The study suggests maximum level of transcriptional activity in both breeds on day 7 p.i. and there was a shift of transcriptional activity from Suffolk on day 0 to Texel on day 7 p.i.. Suffolk had a reduced Th1 response with less pronounced Th2 and Treg immune response, while Texel had an active and synchronized Th1/Th2/Treg immune response in response to GIN infection. Abomasal lymph node tissue was taken from control (n=10) and experimentally infected (with T. circumcincta) lambs (n=36) from Texel and Suffolk breed on day 0, 3, 7, 14 and 21 post infection.
2014-01-01 | E-GEOD-43241 | biostudies-arrayexpress
Project description:Blackface Teladorsagia Solexa Analysis of resistance to Teladosagia ArrayExpress Release Date: 2010-12-08 Publication Author List: Pemberton, J.; Beraldi, D.; Craig, B. and Hopkins, J. Publication Title: Digital gene expression analysis of gastrointestinal helminth resistance in Scottish blackface lambs Publication Author List: Sylvain Aubry, Mali Salmon, Kim M Rutherford, Paul Bertone, Andrea Brautigam, Andreas PM Weber, Krystyna A Kelly, Julian M Hibberd Publication Title: De novo transcriptome assembly enables quantitative expression analysis in non-sequenced model organisms Person Roles: submitter Person Last Name: Hopkins Person First Name: John Person Mid Initials: Person Email: john.hopkins@ed.ac.uk Person Phone: 44 131 650 6160 Person Address: Roslin Institute, Summerhall, Edinburgh. EH9 1QH. UK Person Affiliation: University of Edinburgh
2011-07-14 | GSE30606 | GEO
Project description:BackgroundGastrointestinal (GIT) helminthiasis is a global problem that affects livestock health, especially in small ruminants. One of the major helminth parasites of sheep and goats, Teladorsagia circumcincta, infects the abomasum and causes production losses, reductions in weight gain, diarrhoea and, in some cases, death in young animals. Control strategies have relied heavily on the use of anthelmintic medication but, unfortunately, T. circumcincta has developed resistance, as have many helminths. Vaccination offers a sustainable and practical solution, but there is no commercially available vaccine to prevent Teladorsagiosis. The discovery of new strategies for controlling T. circumcincta, such as novel vaccine targets and drug candidates, would be greatly accelerated by the availability of better quality, chromosome-length, genome assembly because it would allow the identification of key genetic determinants of the pathophysiology of infection and host-parasite interaction. The available draft genome assembly of T. circumcincta (GCA_002352805.1) is highly fragmented and thus impedes large-scale investigations of population and functional genomics.ResultsWe have constructed a high-quality reference genome, with chromosome-length scaffolds, by purging alternative haplotypes from the existing draft genome assembly and scaffolding the result using chromosome conformation, capture-based, in situ Hi-C technique. The improved (Hi-C) assembly resulted in six chromosome-length scaffolds with length ranging from 66.6 Mbp to 49.6 Mbp, 35% fewer sequences and reduction in size. Substantial improvements were also achieved in both the values for N50 (57.1 Mbp) and L50 (5 Mbp). A higher and comparable level of genome and proteome completeness was achieved for Hi-C assembly on BUSCO parameters. The Hi-C assembly had a greater synteny and number of orthologs with a closely related nematode, Haemonchus contortus.ConclusionThis improved genomic resource is suitable as a foundation for the identification of potential targets for vaccine and drug development.
| S-EPMC9933375 | biostudies-literature
Project description:Gastrointestinal nematode (GIN) is a major economic and health concern is sheep farming. Sheep breeds such as Texel are relatively resistant to GIN than the Suffolk. With the objective to understand the underlying genetic mechanism of resistance and susceptibility at the transcriptomic level, two groups of animal from both the breed were artificially (orally) infected with 30,000 L3 larvae of prominent GIN Teladorsagia circumcincta. Subgroups of animals from each breed were slaughtered on day 0, 3, 7, 14 and 21 of post infection (p.i.). Transcriptomic profiling of abomasal lymph node was performed using RNA-seq. The perturbations in gene expression profiles in both the breeds were evident and Texel showed a more tightly regulated immune response than the Suffolk. The number of differentially expressed (DE) genes between the breeds was highest (437) on un-infected control (day 0) and lowest (173) on day 7 p.i.. Pathway analysis of DE genes identified 3 significant pathways, which involved only more highly expressed genes of Suffolk breed on day 0 and only more highly expressed genes of Texel (with one exception) on day 7 p.i.. The Th1, Th2 and Treg response was evident in response to GIN in Texel and was synchronized, while in Suffolk Th1 response was reduced after infection and pronounced Th2 and Treg was not evident. The study suggests maximum level of transcriptional activity in both breeds on day 7 p.i. and there was a shift of transcriptional activity from Suffolk on day 0 to Texel on day 7 p.i.. Suffolk had a reduced Th1 response with less pronounced Th2 and Treg immune response, while Texel had an active and synchronized Th1/Th2/Treg immune response in response to GIN infection.
2014-01-01 | GSE43241 | GEO